Chemistry, Physics and Technology of Surface, 2011, 2 (1), 81-85.

Comparative 13C NMR Spectroscopy of Lignocellulose Sorbents



M. T. Kartel, A. A. Nikolaichuk

Abstract


The composition and structure of initial and modified lignocellulose materials have been investigated by 13C NMR spectroscopy. Changes in functional structure and composition of the samples have been found to arise due to modifying as a result of chemical transformations and hemicelluloses removing. Sorption properties of lignocellulose composites have been studied in relation to heavy metals. They have been found to depend on changes in the composition and functional structure of the materials.

Full Text:

PDF

References


Fernandez-Bolanos J., Felizon B., Herediat A., et al. Characterization of the lignin obtained by alkaline delignification and of the cellulose residue from steam-exploded olive stones // Bioresour. Technol. – 1999. – V. 68, N 2. – P. 121–132.

Pat. 76835 Ukraine, Int. Cl. A61K 36/87 Method of obtaining lignin-containing enterosorbents (variants) / V.O. Denisovych, A.A. Nikolaychuk, L.A. Kupchik, M.T. Kartel – Appl. No. 20040907527, Filed 15.09.2004, Publ. 15.09.2006. – 8 p. (in Ukrainian).

Semenkova G.G., Provotorov V.M., Velikaia O.V. The correction of the imbalance in the proteinase-inhibitor system of patients with protracted pneumonia with the enterosorbent polifepan // Klinicheskaya medi­tsina. – 1995. – V. 73, N 1. – Р. 48–50. (in Russian).

Karmanov A.P. Monakov Yu.B. The structure of lignin macromolecules // Polym. Sci. B. – 1996. – V 38, N 9–10. – Р. 384–394.

Li M.-F., Fan Y.-M., Xu F. et al. Cold sodium hydroxide/urea based pretreatment of bamboo for bioethanol production: Characterization of the cellulose rich fraction. // Ind. Crops Prod. – 2010. – V. 32, N 3. – P. 551–559.

Zhao H., Kwak J.H., Zhang Z.C. et al., Studying cellulose fiber structure by SEM, XRD, NMR and acid hydrolysis // Carbohydr. Polym. – 2007. – V. 68, N 2. – P. 235–241.

Nikolaichuk A.A., Kartel N.T., Kupchik L.A., Denisovich V.A. Synthesis and properties of biosorbents obtained from cellulose-lignin vegetative raw materials – wastes of agricultural complex // Sorbcionnye i hromatograficheskie processy. – 2007. – V. 1, N 3. – P. 489–498. (in Russian).




Copyright (©) 2011 M. T. Kartel, A. A. Nikolaichuk

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.